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栅格翼是由外部框架和内部栅格布置形成的空间多升力面系统,其在高超声速状态具有突出优点。文中结合高超声速流动特点,考虑头部激波及弹身上洗干扰,基于面元法建立栅格翼翼身组合体高超声速气动特性计算模型,根据研究对象特点自动划分面元,进而完成典型栅格翼翼身组合体高超声速气动特性计算,并与数值计算结果进行对比分析。结果表明,在研究范围内,栅格翼翼身组合体高超声速气动特性面元法计算结果与数值计算结果吻合较好,前者较后者相对误差绝对值随攻角增加而增大。
The grid wing is a space multi-lift surface system formed by an outer frame and an internal grid arrangement that has outstanding advantages in hypersonic conditions. Considering the characteristics of hypersonic flow, considering the shock of the head shock and the body wash, the hypersonic aerodynamic model of the grid wing-wing combined body is established based on the face-element method. According to the characteristics of the studied object, the face element is automatically divided to complete the typical grid wing- The hypersonic aerodynamic characteristics of the combination were calculated and compared with the numerical results. The results show that the computational results of the hypersonic aerodynamic characteristics of the grid wing-wing body fit well with the numerical results within the scope of the study. The absolute value of the relative error of the latter increases with the increase of the angle of attack.